Countdown to Obamacare: 64 days

There are 64 days until the next major part of the Affordable Care Act kicks in.On Oct. 1, state and federal governments will launch online insurance marketplaces where the uninsured can shop for new plans.Here's the latest news on the law, also known as Obamacare:* A dozen Senate Republicans signed a letter saying they will try to de-fund the law by Sept. 30, but others in the party say it's a bad strategy.* Insurance plans sold in Maryland will be …